4.5 Article

Larvicidal effect of the Citrus limettioides peel essential oil on Aedes aegypti

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SOUTH AFRICAN JOURNAL OF BOTANY
卷 144, 期 -, 页码 257-260

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ELSEVIER
DOI: 10.1016/j.sajb.2021.09.013

关键词

Insecticide; Monoterpenes; Sweet lemon; Sweet lime

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  1. CNPq
  2. FAPEG

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The study found that the essential oil from sweet lime peel has a good larvicidal activity, with an LC50 of 18.14 micrograms per milliliter against Aedes aegypti, with limonene and linalool as its main chemical components. It was also discovered that the linalyl acetate and isopropyl tiglate in the oil have insecticidal activities against Aedes aegypti.
Citrus limettioides (Rutaceae), popularly known as sweet lime or sweet lemon, is rich in essential oil. Citrus sp. essential oils present a wide spectrum of biological activities, including insecticidal and larvicidal. In this sense, we aimed to investigate the larvicidal potential of Citrus limettioides peel essential oil on the main urban vector of dengue, chikungunya, yellow fever, and Zika viruses Aedes aegypti. The chemical characterization of the material revealed a monoterpene-rich essential oil (mainly limonene - 48.28% - and linalool - 32.17%). The C. limettioides peel essential oil presented a good larvicidal activity on A. aegypti (LC50 = 18.14 mu g mL(-1)). Moreover, the compounds linalyl acetate and isopropyl tiglate, identified in the investigated essential oil, presented a predicted insecticide activity on A. aegypti. Finally, the safety of the C. limettioides peel essential oil was demonstrated on RAW 264.7 murine macrophages. These results support the idea of using the C. limettioides peel essential oil to the development of an economically viable larvicidal product. (C) 2021 SAAB. Published by Elsevier B.V. All rights reserved.

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